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sdk/tests/language_2/async_star/error_test.dart
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Robert Nystrom fc1b1ecc71 Move files under language_2 into subdirectories.
Change-Id: Idbcc965a27e9ffeedf5e0a1068b019de4193070f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/127745
Commit-Queue: Bob Nystrom <rnystrom@google.com>
Reviewed-by: Alexander Thomas <athom@google.com>
2019-12-11 19:18:00 +00:00

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885 B
Dart

// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
import "dart:async";
import "package:async_helper/async_minitest.dart";
/// Tests for exceptions raised in async*
main() {
test('async* with Stream.first should complete with an error', () async {
var expectedStack;
Stream<int> foo() async* {
try {
throw 'oops';
} catch (e, s) {
expectedStack = s;
try {
throw 'oops again!';
} catch (e2, _) {}
await new Future.error(e, s);
}
yield 42;
}
try {
await foo().first;
fail('should not get here, an error should be thrown');
} catch (e, s) {
expect(e, 'oops');
expect(s, expectedStack);
}
});
}